Diphenylnaphthylmethane dyes



l otestecl slog Locss os s'o'ssam, New *zrorsis. To ItATE'OZWiL ammma & oarmsioat CGMJPANY, mac, os NEW was, 22, a (GQRP'ORATIQW or NEW YORK.

filo fil'awimg. .iaogxlioafiog otorer 21, 13%. fierial s eeawo,

To (xiii wfso-m wmgr iii-me anrl tho temperature allowedto drop it sown that, ii, FE. to of the bath which is how cooled to it} was oliarl jmlicial ilegr ze from Loose: P. Kmzssmsfia citizen of the, Uilitsil States, resisting-at Bofialo, in the coast otEr-ie, of New York, I liavs invented certainnew and. useful Improveznents in Diplienylnaplitliylmethane Dyes; and l do hereby declare the following to be a full, clear, also! exact description of the invention, such as will enable others skilled in the art to which it appertains, to make ancl use the same. i

This invention relates to new dyes which .loslong to the diphesylnaphtliylmothane series and which are of value for clyeing silk, W ol nordantecl cotton, and other fibres oi' fabrics. The now dyestufis are also capable, of forming lakes. The invention includes also the dyed ilajbrics, or other ma, terial, dyed with the new dyestuffs.

The new igrestofis can be obtainerl lay-the condensation of totrasllzyltliaminchemo 119-. some with l l liyilrosyetliylalphamaplit 311- amino in presence of phosphorus 0x37 chloride, aiirl with or without file presence of an inert solvent or diluent; The new dyeistuiis have the following probable formu 3,:

about G. 115 parts of dry and pulverized N liydroayeth l-alphanapthylamine is then aolciecl and the mixture thus obtained is kept constantly stirred. Aftertho reaction, which sets in and which manifests gradually begins to subside, the temperature of the bath is raised rapidlyto about 100 C. The temperature ,of the reaction mixture rises with that of the loath and continuesto rise somewhat above that of the bath due to the heat of reaction, and then gradually subsides again-to that of the bath. The product pmls or swells up and assumes a trained at a temperature of 95-100 C. for -60 minutes, or until the reaction is complete. 2000 parts of water are then added and the resulting mixture heated by passing steam through it until the dyostufi assumes a more or less crystallinestate. 2000 parts of cold water are then added and the mixtaro agitated until itlias cooled to room temperature. The dyestufi' is then filtered off, Washed With cold Water and purified, if dosired, by dissolving it in hot water, filtering, and salting out the dyestufi from the filtrate, Whilst stirririg, by the addition of common salt.

The new dyestufit tho roduoeol has the following probaiols forrozaum I c 4= ):X swarms):

. omHr-Ns-om-osaom in w-hichli denotes ecu allayi-rarlioal such as methyl, ethyl, propyl, etc, amt X Emotes an acid ratliosl such as chi-arias, sulfate, sto;

The following specilio exampls will illustrato the invention, but it is understood that the invention. is not limitstl'tlieroto, lil'ne parts are joy weight Example: 150 part-s oat iffy anal finely powderecl tatramethyloliamisocorizo ohenono 1;. v is thoroughly stirred with 'Z0 ports of (tr-ytolsen'ountil a well mix'e il and comparatively uniform. paste is formeiflOl) arts. of phosphorus oxyohloricle is then a d to'the paste and the mixture, which is kept, con stantly stirred, is surroundefi by a bath maintained at a temperature of aiiootzt it}? f} The temperature of the' mixtare, clue ttiithe reaotion which sets in, spontaneously rises Li a temperature above that of the bath, and at about C. tho comparatively fluidiseaction-prooluct changes more or less ouickly to acrystalline mass. '1 Thostirring 15 cos I I figoil o aoa) and oonst-itiites, in the dry and powdered state, a greenish powder with a bronze-like lustre, which is almost insoluble in cold water and sparingly soluble in hot Water to give blue solutions which 11 on addition of caustic soda produces brownish orecipitates. lit is soluble in concentrated sulfuric acid to give reddish-brown solutions which upon gradual dilution with water change to a yellow, then green aml finally to a blue oolor, tlio dye remaining in solution, It

itseltf by a considerable rise of temperature,

tough dough-like consistency. It is main-v thereof on the fibre or fabric, as well as thenew dyestufi's themselves or lakes thereof, form a part of the present invention.

I claim:

1. The process of making new diphenylnapthylmethane dyes which comprises the condensation of approximately equal molecular proportions of tetraalkyldiaminobenzophenone and N-hydroxyethyl-alphanaphthylamine in the presence of phosphorus oxychloride and an inert diluent.

2. As new products, the herein described new dyestufi's having the following probable formula:

omnrNn-cm-cnuon; in which it denotes an alkyl radical such as methyl, ethyl, etc. and X denotes an acid radical such as chloride, sulfate, etc., said products, in the dry and powdered state, being of a greenish color. with a bronze-like lustre, sparingly soluble in water, soluble in. alcohol to give blue solution, and soluble in concentrated sulfuric acid (66 B.) to give reddish brown solutions wmcn upon gradual dilution with water change to a yellow, then green and finally, to a blue color; and dyeing silk, wool, and mordanted cotton, blue shades.

Asa new product, the herein described new dyestull having the following probable formula NE-CHPCHKOH) said eye, in the dry and powdered state, be-

ing of a greenish color with a bronze-like lustre, sparingly soluble in water to give a blue solution which upon the addition of caustic soda gives a brownish colored precipitate, soluble in alcohol and in acetic acid to give blue solutions, soluble in concentrated sulfuric a cid (66 B.) to give a. reddish-brown solution which upon gradual dilution with water changes first to a yellow, then. to a green, and finally to a blue color; and dyeing silk, wool, and cotton mordanted with tannic acid and tartar emetic, blue shades,

4. Materials dyed with the new dyestufis of claim 2.

5. Materials dyed with the new dyestufi of claim 3. s

In testimony whereof I aflix my signature.

LUCAS P. KYRIDES. 

